Home / 665,019.14-997,668.89-215,705.05

Finding the Fourth Proportional to 665,019.14, 997,668.89 and 215,705.05

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Solution

The fourth proportional to 665,019.14, 997,668.89 and 215,705.05 is: 323,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,019.14 : 997,668.89 = 215,705.05 : x
  2. Step 2: Convert to fraction form
    665,019.14/997,668.89 = 215,705.05/x
  3. Step 3: Cross multiply
    665,019.14x = 997,668.89 × 215,705.05
  4. Step 4: Simplify right side
    665,019.14x = 215,202,215,037.09
  5. Step 5: Solve for x
    x = 215,202,215,037.09/665,019.14
  6. Step 6: Final answer
    x = 323,603.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.